Compositions and methods comprising conductive metal organic frameworks and uses thereof

1. A composition comprising:

a conductive material comprising a metal-organic framework (MOF),

wherein the MOF comprises a plurality of metal ions, each coordinated with at least one ligand comprising at least two sets of ortho-phenylenediimine groups arranged about an aromatic core.

2. The composition of claim 1 , wherein a portion of the metal ions are associated with two, three, or four ligands, and each of those ligands is individually associated with one, two, three, or four metal ions.

3. The composition of claim 1 , wherein each metal ion is a monovalent, divalent, or trivalent metal ion.

4. The composition of claim 1 , wherein each metal ion is Ag + , Cu + , Au + , Mg 2+ , Mn 2+ , Fe 2+ , Co 2+ , Ni 2+ , Cu 2+ , Pd 2+ , Pt 2+ , Ru 2+ , Cd 2+ , Zn 2+ , Pb 2+ , Hg 2+ , V 2+ , Cr 2+ , Ni +2 , Fe 3+ , V 3+ , Ti 3+ , Sc 3+ , Al 3+ , In 3+ , Ga 3+ , Mn 3+ , Co 3+ , and/or Cr 3+ .

5. The composition of claim 1 , wherein the aromatic core comprises a plurality of fused aryl and/or heteroaryl rings.

6. The composition of claim 1 , wherein the aromatic core comprises one or more of benzyl, thiophenyl, carbazolyl, pyrrolyl, indolyl, and furanyl rings.

7. The composition of claim 1 , wherein the at least one ligand comprises the structure:

wherein n is 1, 2, or 3, and C represents the aromatic core.

8. The composition of claim 1 , wherein the at least one ligand has the structure:

wherein:

each R 1 is the same or different and is selected from the group consisting of hydrogen, —NO 2 , —R′, —F, —Cl, —Br, —I, —CN, —NC, —SO 3 R′, —SO 3 H, —OR′, —OH, —SR′, —SH, —PO 3 R′, —PO 3 H, —CF 3 , —NR′ 2 , —NHR′, and —NH 2 ; and

each R′ is the same or different and is optionally substituted alkyl or optionally substituted aryl.

9. The composition of claim 1 , wherein the at least one ligand has the structure:

wherein each R 1 is the same or different and is selected from the group consisting of hydrogen, —NO 2 , —R′, —F, —Cl, —Br, —I, —CN, —NC, —SO 3 R′, —SO 3 H, —OR′, —OH, —SR′, —SH, —PO 3 R′, —PO 3 H, —CF 3 , —NR′ 2 , —NHR′, and —NH 2 ;

each X is the same or different and is selected from the group consisting of NR′, O, S, Se, and Te; and

each R′ is the same or different and is optionally substituted alkyl or optionally substituted aryl.

10. The composition of claim 1 , wherein the MOF is configured to detect a presence and/or a concentration of one or more analytes.

11. The composition of claim 10 , wherein the one or more analytes comprise ammonia.

12. The composition of claim 10 , wherein the one or more analytes comprise O 2 , CO 2 , CO, oxides of nitrogen, water, amines, N-heterocycles, alcohols, ketones, aldehydes, ethers, aromatics, nitriles, phosphonates, and/or hydrocarbons.